Exploratorium Digital Library: Search Results

Search Results

Total Number of Records: 14			1 2 Next
	resource title	grade level	topics

	Change Over Time Genes affect many traits in an organism, including appearance. Changes in genes can create changes in an organism's appearance. This resource provides links to three pages that explore how genes effect... HTML Document: 12 kb	3-5 6-8 9-12	Animals, DNA Structure and Function, Evidence for Evolution, Mechanisms of Evolution

	Species-Specific Fertilization in Sea Urchins Image 1 This is the first of five images showing that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around... JPEG Image: 300 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Image 2 This is the second of five images showing that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around... JPEG Image: 311 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Image 3 This is the third of three images showing that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around... JPEG Image: 321 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Image 4 This is the fourth of five images showing that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around... JPEG Image: 330 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Image 5 This is the last of five images showing that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around... JPEG Image: 325 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Movie (QuickTime) The movie shows that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around the eggs of L. pictus;... QuickTime Movie: 778 kb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Species-Specific Fertilization in Sea Urchins Movie (Windows) Record name The movie shows that eggs from the sea urchin Lytechinus pictus (large eggs) are preferentially fertilized by sperm from the same species. A fertilization membrane forms around the eggs of L. pictus;... Windows Video: 3 Mb	6-8 9-12	Cell Division, Animals, Evidence for Evolution, Mechanisms of Evolution, Biodiversity

	Traits of Life Web Site This extensive Web site introduces the Exploratorium's Traits of Life collection, a set of biology exhibits and demonstrations that examines the fundamental elements common to all living things. The collection... HTML Document: 7 kb	6-8 9-12	Cells, Human Body, Heredity and Genetics, Diversity of Life, Evolution, Energy Flow and Chemical Cycles

	Frogs This Web site, based on a popular exhibition, explores the adaptable frog--and the importance of frogs as research animals and environmental sentinels--through articles, audio, video, and interactive... HTML Document: 10 kb	6-8 9-12 Postsecondary	The Scientific Process, Animals, Cultural Perspectives, Mechanisms of Evolution

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